Motion of a Viscoelastic Micellar Fluid Around a Cylinder: Flow and Fracture
arXiv:cond-mat/0605640 · doi:10.1103/PhysRevLett.98.224501
Abstract
We present an experimental study of the motion of a viscoelastic micellar material around a moving cylinder, which ranges in response from fluid-like flow to solid-like tearing and fracture, depending on the cylinder radius and velocity. The observation of viscoelastic crack propagation driven by the cylinder indicates an extremely low tear strength, approximately equal to the steady state surface tension of the fluid. At the highest speeds a driven crack is observed in front of the cylinder, propagating with a fluctuating speed equal on average to the cylinder speed, here as low as 5% of the elastic wave speed in the medium.
arXiv comment5 pages 6 figures
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Cited by in corpus (8)
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- Rearrangement zone around a crack tip in a double self-assembled transient network
- Spreading of droplets under various gravitational accelerations
- Gradient flow model of mode-III fracture in Maxwell-type viscoelastic materials